change the directory of temporary file

Hi,

have you guys noticed that as comsol is solving ,there will be a lot of temporary files showing in the directory

~/.comsol/v41/configuration/comsol/org.eclipse.osgi/bundles/.

is there a way to change the location of this directory to someplace else ?

i tried the startup argument of comsol like '-tmpdir and '-prefsdir, it seems that they don't help.